Msca

**Full Changelog**: https://github.com/ihmeuw-msca/msca/compare/v0.1.1...v0.1.2

What's Changed
* Add newton cg solver by zhengp0 in https://github.com/ihmeuw-msca/msca/pull/12


**Full Changelog**: https://github.com/ihmeuw-msca/msca/compare/v0.1.0...v0.1.1

What's Changed
* Advance to version 0.0.4 by zhengp0 in https://github.com/ihmeuw-msca/msca/pull/9
* Add matrix method option by zhengp0 in https://github.com/ihmeuw-msca/msca/pull/11


**Full Changelog**: https://github.com/ihmeuw-msca/msca/compare/v0.0.4...v0.1.0

What's Changed
* Add line search parameters to solvers by zhengp0 in https://github.com/ihmeuw-msca/msca/pull/8


**Full Changelog**: https://github.com/ihmeuw-msca/msca/compare/v0.0.3...v0.0.4

Add `prox` submodule to `optim`.

Add the new `c2fun` module.